Is there a way that I can configure properties of my JPA(I am using hibernate as implementation) entity such that no one can see its value while debugging?
The property is transient and I don't want anyone to see it while debugging due to security reasons. The jar/war of my application will be used by third party.
Assuming you're running your program on an Oracle JVM, and allowing people to attach to that JVM via a debugger -- no, you can't hide certain fields.
The interface that the debuggers will use to talk to the Java process is JDI 1, and it gives pretty much all of the information that the JVM has about your code. Specifically:
ReferenceType::allFields to list all of the fields, including transient ones, in the class:
All declared and inherited fields are included, regardless of whether they are hidden or multiply inherited.
ObjectReference::getValue(Field) to get the field's value. Note that the documentation doesn't say anything about an IllegalAccessException, or anything like that.Even if you could lock down certain fields, it wouldn't do you much good; the debugger would be able to see the value when it's in a local variable (either when you read the field, or when you're about to write to it). What you really want is to lock down certain values, not fields. And that's also not in the JDI.
1 Actually JDWP under the hood, but JDI is built on top of that and easier to discuss here.